Positive Grid Spark GO Guitar Amplifier

A practice amp is only useful if switching it on feels easier than finding another excuse not to play. The Positive Grid Spark GO makes its argument through scale: at 125 × 85 × 45 mm, it is a small, rechargeable box that can live near your guitar rather than become another piece of furniture. For short sessions between other things, that is a meaningful advantage. Not every attempt at learning a chord needs a dedicated music room.

The interesting part is how much tone control sits behind that modest exterior. There are 33 amp models and 43 effects, with four customisable onboard presets. That gives you scope to build different sounds for different material, then keep a handful ready on the amp. The numbers are not a guarantee that every option will become a favourite; the useful proposition is being able to explore without assembling a separate collection of pedals.

There is also a welcome distinction between playing and configuring. You can use the four factory presets without the Spark app, so a phone is not compulsory for every session. Creating or accessing additional tones does require the app. That is the main workflow compromise: the little box offers immediate playing, but its deeper personality lives on a screen. If guitar practice is your deliberate escape from phone time, decide how much editing you actually want before committing.

Its built-in speaker is mono, while the headphone output is stereo. The latter matters for quiet practice: you can keep playing without making everyone else in the house a compulsory audience. Bluetooth audio adds another practical route for playback, while the rechargeable battery is rated for up to eight hours at mid volume or lower. That suits moving between rooms or taking the amp somewhere without arranging the session around a socket; higher-volume use should not be planned around that maximum.

Keep expectations of the speaker in proportion. The stated maximum sound pressure level is 82 dB SPL at one metre, and this is a personal practice proposition, not something we would choose to compete with a loud band. Its passive-radiator cabinet design is part of the compact speaker arrangement, not a licence to expect a shrunken stage rig. The drummer is unlikely to be impressed by your efficient use of shelf space.

USB recording gives the GO a useful second job. Its one-input, two-output interface runs at 44.1 kHz and 16-bit, providing a route for recording guitar without making a separate interface the starting requirement. Taken together, these features make it an appealing companion to a larger setup, or a compact starting point for someone whose real goal is regular practice. Choose it because it lowers the effort of getting a guitar heard—not because small equipment somehow abolishes the need for larger equipment.